<template>
  <div style="display: flex; justify-content: space-between">
    <div style="display: flex">
      <el-select v-model="categoryVM" placeholder="分类" style="width: 240px; margin-right: 8px">
        <el-option
          v-for="item in category"
          :key="item.value"
          :label="item.label"
          :value="item.value"
        />
      </el-select>
      <div style="display: flex">
        <el-input
          v-model="newCategoryName"
          placeholder="添加分类"
          style="margin-right: 8px"
        ></el-input>
        <el-button @click="onAddCategoryClick">添加</el-button>
      </div>
    </div>

    <div>
      <el-button type="primary" @click="onSave" style="width: 100%">save</el-button>
    </div>
  </div>
  <div>
    <el-input v-model="article.title" placeholder="标题" style="margin-top: 8px"></el-input>
    <el-input v-model="article.author" placeholder="作者" style="margin-top: 8px"></el-input>
  </div>
  <div
    :class="{ fullscreen: fullscreen }"
    class="tinymce-container"
    :style="{ width: containerWidth }"
  >
    <textarea :id="tinymceId" class="tinymce-textarea" />
  </div>
</template>

<script>
/**
 * docs:
 * https://panjiachen.github.io/vue-element-admin-site/feature/component/rich-editor.html#tinymce
 */
import plugins from './plugins'
import toolbar from './toolbar'
import load from './dynamicLoadScript'
import { v4 as uuidv4 } from 'uuid'
import {
  postSaveArticle,
  postCreateCategory,
  postQueryCategory,
  postQueryArticle
} from '../../service/api'

// why use this cdn, detail see https://github.com/PanJiaChen/tinymce-all-in-one
// http://cdn.jsdelivr.net无法访问了,将cdn.jsdelivr.net域名替换为fastly.jsdelivr.net或者gcore.jsdelivr.net
// const tinymceCDN = 'https://cdn.jsdelivr.net/npm/tinymce-all-in-one@4.9.3/tinymce.min.js'
const tinymceCDN = 'https://fastly.jsdelivr.net/npm/tinymce-all-in-one@4.9.3/tinymce.min.js'

export default {
  name: 'TinymceComp',
  props: {
    id: {
      type: String,
      default: function () {
        return 'vue-tinymce-' + +new Date() + ((Math.random() * 1000).toFixed(0) + '')
      }
    },
    value: {
      type: String,
      default: ''
    },
    toolbar: {
      type: Array,
      required: false,
      default() {
        return []
      }
    },
    menubar: {
      type: String,
      default: 'file edit insert view format table'
    },
    height: {
      type: [Number, String],
      required: false,
      default: 360
    },
    width: {
      type: [Number, String],
      required: false,
      default: 'auto'
    }
  },
  data() {
    return {
      newCategoryName: '',
      categoryVM: 'javascript',
      uid: '',
      hasChange: false,
      hasInit: false,
      tinymceId: this.id,
      fullscreen: false,
      article: {
        title: '',
        author: ''
      },
      category: [],
      languageTypeList: {
        en: 'en',
        zh: 'zh_CN',
        es: 'es_MX',
        ja: 'ja'
      }
    }
  },
  computed: {
    language() {
      return this.languageTypeList['zh']
    },
    containerWidth() {
      const width = this.width
      if (/^[\d]+(\.[\d]+)?$/.test(width)) {
        // matches `100`, `'100'`
        return `${width}px`
      }
      return width
    }
  },
  watch: {
    value(val) {
      if (!this.hasChange && this.hasInit) {
        this.$nextTick(() => window.tinymce.get(this.tinymceId).setContent(val || ''))
      }
    },
    language() {
      // this.destroyTinymce()
      this.$nextTick(() => this.initTinymce())
    }
  },
  mounted() {
    this.init().then(() => {
      this.postQueryArticle()
    })
    this.postQueryCategory()
  },
  activated() {
    if (window.tinymce) {
      this.initTinymce()
    }
  },
  deactivated() {
    this.destroyTinymce()
  },
  onBeforeUnmount() {
    this.destroyTinymce()
  },
  methods: {
    postQueryArticle() {
      const uid = this.$route.params.uid
      const body = {
        uid: uid ? uid : uuidv4()
      }
      postQueryArticle(body).then((res) => {
        console.log('res', res)
        const { title, author, content, category } = res.data[0]
        this.article = { title, author }
        this.setContent(atob(content))
        this.categoryVM = category.name
      })
    },
    postQueryCategory() {
      postQueryCategory().then((res) => {
        console.log(res)
        this.category = res.data.map((item) => {
          return {
            label: item.name,
            value: item.name
          }
        })
      })
    },
    // 新增分类
    onAddCategoryClick() {
      const body = { name: this.newCategoryName }
      postCreateCategory(body).then((res) => {
        this.postQueryCategory()
      })
    },
    onSave() {
      const content = window.tinymce.activeEditor.getContent()
      const uid = this.$route.params.uid
      this.uid = uid ? uid : uuidv4()
      const body = {
        ...this.article,
        content: btoa(content),
        uid: this.uid,
        category: {
          name: this.categoryVM
        }
      }
      postSaveArticle(body).then((res) => {
        console.log(res)
      })
    },
    init() {
      // dynamic load tinymce from cdn
      return new Promise((resolve, reject) => {
        load(tinymceCDN, (err) => {
          if (err) {
            this.$message.error(err.message)
            return
          }
          this.initTinymce()
          resolve('Timymce init success')
        })
      })
    },
    initTinymce() {
      const _this = this
      window.tinymce.init({
        language: this.language,
        selector: `#${this.tinymceId}`,
        height: this.height,
        body_class: 'panel-body',
        branding: false,
        object_resizing: false,
        toolbar: this.toolbar.length > 0 ? this.toolbar : toolbar,
        menubar: this.menubar,
        plugins: plugins,
        toolbar_drawer: true,
        end_container_on_empty_block: true,
        powerpaste_word_import: 'clean',
        paste_data_images: true, //允许粘贴base64图片
        paste_enable_default_filters: false, //word文本设置
        code_dialog_height: 450,
        code_dialog_width: 1000,
        advlist_bullet_styles: 'default,circle,disc,square',
        //advlist_number_styles: 'default',
        imagetools_cors_hosts: ['www.tinymce.com', 'codepen.io'],
        default_link_target: '_blank',
        link_title: true,
        fontsize_formats: '12px 14px 16px 18px 24px 36px 48px 56px 72px',
        font_formats:
          '微软雅黑=Microsoft YaHei,Helvetica Neue,PingFang SC,sans-serif;苹果苹方=PingFang SC,Microsoft YaHei,sans-serif;宋体=simsun,serif;仿宋体=FangSong,serif;黑体=SimHei,sans-serif;Arial=arial,helvetica,sans-serif;Arial Black=arial black,avant garde;Book Antiqua=book antiqua,palatino;',
        nonbreaking_force_tab: true, // inserting nonbreaking space &nbsp; need Nonbreaking Space Plugin
        statusbar: false,
        init_instance_callback: (editor) => {
          console.log('init_instance_callback', editor)
          if (_this.value) {
            editor.setContent(_this.value)
          }
          _this.hasInit = true
          editor.on('NodeChange Change KeyUp SetContent', () => {
            this.hasChange = true
            this.$emit('input', editor.getContent())
          })
        },
        setup(editor) {
          editor.on('FullscreenStateChanged', (e) => {
            _this.fullscreen = e.state
          })
        },
        // it will try to keep these URLs intact
        // https://www.tiny.cloud/docs-3x/reference/configuration/Configuration3x@convert_urls/
        // https://stackoverflow.com/questions/5196205/disable-tinymce-absolute-to-relative-url-conversions
        convert_urls: false,
        // 整合七牛上传
        // images_dataimg_filter(img) {
        //   setTimeout(() => {
        //     const $image = $(img);
        //     $image.removeAttr('width');
        //     $image.removeAttr('height');
        //     if ($image[0].height && $image[0].width) {
        //       $image.attr('data-wscntype', 'image');
        //       $image.attr('data-wscnh', $image[0].height);
        //       $image.attr('data-wscnw', $image[0].width);
        //       $image.addClass('wscnph');
        //     }
        //   }, 0);
        //   return img
        // },
        images_upload_handler(blobInfo, success, failure, progress) {
          // progress(0);
          // const token = _this.$store.getters.token;
          // getToken(token).then(response => {
          //   const url = response.data.qiniu_url;
          //   const formData = new FormData();
          //   formData.append('token', response.data.qiniu_token);
          //   formData.append('key', response.data.qiniu_key);
          //   formData.append('file', blobInfo.blob(), url);
          //   upload(formData).then(() => {
          //     success(url);
          //     progress(100);
          //   })
          // }).catch(err => {
          //   failure('出现未知问题，刷新页面，或者联系程序员')
          //   console.log(err);
          // });
          const img = `data:${blobInfo.blob().type};base64,${blobInfo.base64()}`
          success(img)
        }
      })
    },
    destroyTinymce() {
      const tinymce = window.tinymce.get(this.tinymceId)
      if (this.fullscreen) {
        tinymce.execCommand('mceFullScreen')
      }

      if (tinymce) {
        tinymce.destroy()
      }
    },
    setContent(value) {
      window.tinymce.get(this.tinymceId).setContent(value)
    },
    getContent() {
      window.tinymce.get(this.tinymceId).getContent()
    },
    imageSuccessCBK(arr) {
      arr.forEach((v) =>
        window.tinymce.get(this.tinymceId).insertContent(`<img class="wscnph" src="${v.url}" >`)
      )
    }
  }
}
</script>

<style lang="less" scoped>
.tinymce-container {
  position: relative;
  line-height: normal;
  margin-top: 8px;
  :deep(*) {
    border-color: #efefef;
    white-space: pre-wrap;
  }
}

.tinymce-container {
  :deep(.mce-fullscreen) {
    z-index: 10000;
  }
}

.tinymce-textarea {
  visibility: hidden;
  z-index: -1;
}

.editor-custom-btn-container {
  position: absolute;
  right: 4px;
  top: 4px;
  /*z-index: 2005;*/
}

.fullscreen .editor-custom-btn-container {
  z-index: 10000;
  position: fixed;
}

.editor-upload-btn {
  display: inline-block;
}
</style>
